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Integral aproximations,Plz help

  1. May 2, 2010 #1
    Q: How many terms of the alternating series [tex]\sum((-2)^n)/n![/tex] needed to find the sum to an accuray of 0.01?

    What approximations r going to help? I can not do with Riemann,Trapezoidal and Simpson.
  2. jcsd
  3. May 2, 2010 #2


    Staff: Mentor

    This is not a precalculus question. You should post problems like this in the Calculus & Beyond section.

    Your text should provide information about error estimates for alternating series, namely that the first unused term in the series gives a bound for the error.
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